-61.45% is the change from 812 to 313
Calculation steps:
[( 313 - 812 ) ÷ 812] x 100 = -61.45%
Formula
Percentage change = [(313 - 812) / 812] x 100
Subtract the new number by the original number
313 - 812 = -499
-499 ÷ 812 = -0.6145320197044335
-0.6145320197044335 x 100 = -61.45%